That's not what "in remembrance" refers to here.
In the Jewish Haggadah--the proscription of how to do a Passover Seder--certain key statements are made to emphasize the meaning and significance of the Passover. It says, "We were slaves in Egypt", it does not say "our ancestors were slaves in Egypt", because in the Passover meal the Jewish people "remember" the deliverance of Israel from Egypt. The past and the present are connected together here, the Passover draws those eating it into the reality of the deliverance--"We were slaves in Egypt". The Passover draws together history and present life into identity--as the people God delivered.
When Christ says "Do this for the remembrance of Me" He is not saying, "Don't forget Me", He's establishing a new meaning for this meal, even as the Passover connected the people with the deliverance from slavery in Egypt to be the free people of God, so does this Meal being instituted by Jesus for His followers connect them to His life-giving flesh and blood broken and shed for them. It is not mere memorial, but a sacred remembrance, or
anamnesis; when we partake of this bread and the cup of this wine we are, as St. Paul himself says, partaking and sharing in the body and blood of Jesus (1 Corinthians 10:16-18), we partake and share in--personally--Christ's own passion, death, and offering of Himself.
If Jesus were only interested in us remembering Him in some vague abstract way, we can do that with anything or without anything. But Jesus' intent is far deeper here, when we receive this bread and wine, we receive Him, we receive His body, we receive His blood, we receive His sacrifice, we share in and of Him and all which He has done, together, as His people. We become participants in the deliverance, once and for all, from sin and death which He accomplished by His dying and rising.
And if these things weren't of such great importance, the Apostle would not warn us that when we mistreat and misapproach the Table of Christ we are not sinning against mere bread and wine, we are sinning against the very body and blood of the Lord,
"
Whoever, therefore, eats the bread and drinks the cup of the Lord in an unworthy manner will be answerable for the body and blood of the Lord. Examine yourselves, and only then eat of the bread and drink of the cup. For all who eat and drink without discerning the body, eat and drink judgment against themselves." - 1 Corinthians 11:27-29
Since we are not receiving mere bread and wine, but the body and blood of Jesus Christ Himself, we ought to approach it with the same reverence we would show Him--because it
is Him. We receive the very King of Glory when we receive His Supper.
-CryptoLutheran